Multi-service channelized sonet mapper framer
AssigneeBroadcom Corporation
InventorJean-Marc Guy Patenaude
Life of this patent
Estimating the term…
Abstract
An embodiment of a multi-service mapper framer device and methods for operating same are described. This device may support the interconnection of synchronous optical networks using the SONET and SDH standards to Ethernet packet networks, and may be capable of mapping up to 2.5 gigabits per second of traffic from a variety of client-side interfaces including time division multiplex T1/E1 and T3/E3 data interfaces, a System Packet Interface, and Ethernet packet data interfaces. The device may support a trunk-side connection using a T3/E3 data interface, and the ANSI T1X1.5 Generic Framing Procedure and ITU X.86 Ethernet-over-SONET Recommendation may also be supported. Functionality to enable Virtual Concatenation with Link Capacity Adjustment Scheme may be included.
Claims20
A multi-service mapper framer comprising:
- an integrated chip, comprising:
- at least one on-chip network interface for formatting a receive serial data stream from a synchronous optical communication link receive path, producing a channelized receive data stream, and for formatting a channelized transmit data stream, producing a transmit serial data stream for transmission on a synchronous optical communication link transmit path;
- at least one on-chip cross-connect for de-multiplexing the channelized receive data stream, producing at least one receive data channel, and for multiplexing at least one transmit data channel, producing the channelized transmit data stream;
- at least one on-chip packet mapper for mapping at least one of the at least one receive data channel, producing a receive packet data stream, and for de-mapping a transmit packet data stream, producing at least one of the at least one transmit data channel;
- at least one on-chip packet data interface for packetizing the receive packet data stream producing a receive packet stream, and for de-packetizing a transmit packet stream into the transmit packet data stream;
- at least one on-chip DS1/E1 data interface for framing at least one of the at least one receive data channel, producing a time division multiplexed receive data stream, and for framing a time division multiplexed transmit data stream producing at least one of the at least one transmit data channel;
- at least one on-chip DS3/E3 data interface for framing at least one of the at least one receive data channel, producing a time division multiplexed receive data stream, and for framing a time division multiplexed transmit data stream producing at least one of the at least one transmit data channel;
- at least one on-chip telecom bus interface for transferring data from at least one of the at least one receive data channel to an external device, and for transferring to at least one of the at least one transmit data channel data from the external device;
- and
- at least one on-chip microprocessor unit arranged in order to allow information to be exchanged with at least one of the at least one network interface, the at least one cross-connect, the at least one packet mapper, the at least one packet data interface, the at least one DS1/E1 interface, the at least one DS3/E3 interface, and the at least one telecom bus interface.
A method of operating a multi-service mapper framer, the method comprising:
- performing by an integrated chip, functions comprising:
- framing a receive serial data stream from a synchronous optical communication link receive path into a channelized receive data stream;
- de-multiplexing the channelized receive data stream, producing at least one receive data channel;
- mapping at least one of the at least one receive data channel, producing a receive packet data stream;
- packetizing the receive packet data stream producing a receive packet stream;
- de-packetizing a transmit packet stream into a transmit packet data stream;
- de-mapping the transmit packet data stream, producing at least one transmit data channel;
- multiplexing the at least one transmit data channel, producing a channelized transmit data stream;
- and
- formatting the channelized transmit data stream producing a transmit serial data stream for transmission on a synchronous optical communication link transmit path.
A machine-readable memory, having stored thereon a computer program having a plurality of code sections for implementing a multi-service mapper framer, the code sections executable by a machine for causing the machine to perform the operations comprising:
- performing by an integrated chip, functions comprising:
- framing a receive serial data stream from a synchronous optical communication link receive path into a channelized receive data stream;
- de-multiplexing the channelized receive data stream, producing at least one receive data channel;
- mapping at least one of the at least one receive data channel, producing a receive packet data stream;
- packetizing the receive packet data stream producing a receive packet stream;
- de-packetizing a transmit packet stream into a transmit packet data stream;
- de-mapping the transmit packet data stream, producing at least one transmit data channel;
- multiplexing the at least one transmit data channel, producing a channelized transmit data stream;
- and
- formatting the channelized transmit data stream producing a transmit serial data stream for transmission on a synchronous optical communication link transmit path.
Dependencies are inferred from the claim text.